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CVE-2025-9090

50
FAUCET Score

CVE-2025-9090 is a critical command injection vulnerability affecting Tenda AC20 16.03.08.12 firmware, specifically within the Telnet Service's websFormDefine function. With a CVSS score of 9.8, this vulnerability allows unauthenticated attackers to remotely execute arbitrary commands with high impact on confidentiality, integrity, and availability. An exploit for this vulnerability has been publicly disclosed on ExploitDB, though there is currently no evidence of widespread active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
16.03.08.12CPE matchmatch criteria
cpe:2.3:o:tenda:ac20_firmware:16.03.08.12:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

2.1LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
14.11%
Probability of exploitation in next 30 days
EPSS Percentile
96.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-52418 · Aug 18, 2025
This CVE's current EPSS score of 0.1411 is in the 92nd percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / ZZ2266/.github.io/blob/main/AC20/telnet/readme.md
ExploitThird Party Advisory
github.com / ZZ2266/.github.io/blob/main/AC20/telnet/readme.md
ExploitThird Party Advisory
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
tenda.com.cn
Product